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PATENTED DEC 24 1867 o OOG? i o o o o @Hitch tetes gastiert ffice,

EDWIN A. HILL, 4O F QUINCY, MASSACHUSETTS.

Letters Patent No. 72,492, 'dated December 24,1486?.

IMPROVED MACHINE FOR PUNCHING RUBBER INNER SOLES.

T0 ALL PERSONS TO WHOM THESE PRESENTS MAY COME:

Beit known that I, EDWIN A. HILL, of Quincy, in the county of Norfolk, and State of Massachusetts,

have invented a new and useful Machine for Punching a Rubber Inner Sole, or a sheet o i' rubber or other material, with a series of small holes; and I do hereby declare the same to be. fully described in the following specification, and represented in the accompanying drawings, of which-- Figure 1 is a front elevation, and

a Figure 2 a transverse section of it.

Figure 3 is a top view of the bed-die. Figure 4 is an under side view of the clearer, and its series of punchers and cen'tralizers. A This machine is specially intended to punch an India-rubber inner sole of the kind patented June 5, A. D.

1866, by Lyman Daggett. Y l

In the drawings, A denotes the frame of the machine, carrying, on a cross-rail, B, a bed or die-plate, C, perforated with numerous holes a a a, die., and also with four centralizing holes b b bj; these latter holes being arranged near the corners of the plate, and outside of the series-of holes a a. Directly over the bed or die-plate C is a series of punches, c c c, each of which is to operate with one of the holes a oYf the die-plate. All

these punches are extended downward from a metallic plate, D, fixed to the under side. of aplaten-bar, E, which is arranged. across the frame, and so as to be capable of being moved vertically within guide-groovcs made in the opposite ends of the frame. One of such grooves is shown at d in g. 2. Connecting rods, e e, jointed to the ends of the bar E, extend down to crank-pinsff, projecting from crank-wheels y y, fixed upon a horizontal,

shaft, L, arranged below the bed-rail B. By revolving such shaft, the platen-.han with its series of punches; will have reciprocating vertical motions imparted to them. Besides the series of punches there extend down from the plate D four cylindrical projections, c' z' z' t', each of which terminates at its lower end in a cone or frustum thereof, as shown at c. These frusto-conical projections, z'z', are centralizers, and are to enter the holes during a descent of the punches, and prior to the contact of the punches with the rubber sole when placed on the die-plate. The centralizers, with their holes in the die-plate, serve to maintain the punches in their due' relations with their holes in the`dieplate, while the punches may be entering and passing through the sole."

Wer'e it not for the centralizers and theirl holes, the 'punches would be likely to be molte or less swerved aside by the rubber so as not to correctly enter their holes Vin the die-plate. Furthermore, there is applied to the several punches and the centralizers, a horizontal plate, F, suspended from the plate D by four headed supporters or rods ZZ, which slide freely within the plate D. Extending down through the platen-bar and the plate D, and resting on the plate F, are four depressers or rods, m m m m, which slide freely inthe plate D and the platen-bar, and extend aboveIthe latter in manner as represented in figs. 1 and 2. Directly over each one of the depressers m, and screweddown through the arch or cap-bar n, of the frame A, is a screw, o. The plate F serves three purposes, that is, it not only answers to hold the solerilat upon the die-plate while the sole is in the act of being punched, butserv'es as a holderof the punches in their proper positions, and as a clearer to cast the sole 0E the punches. The latter it will do by the downwardpressure of the depressers, when they are raised and forced up against the screws o o. In order to e'ect the punching of a sole by the machine, such sole is to be laid upon the bed-die while the driving-shaft ofthe machine may be in revolution. During a depression ofthe platen-bar the centralizers will first pass into their holes of the die-plate, the plate F will gno down upon the lsole, and the punches will be driven through such sole, and into their holes of the die-plate, the portions of rubber` removed from the sole by the punches being forced through their holes, and a. passage, P, made through the support-bar of the die-plate. On the punches being next raised upward, the sole will rise with them, and will be forced oif them bythe plate F, which will be depressed bythe depressers when forced against the lower ends of the` adjustable screws of the cap o f the frame.

I claim as my inventionl The machine, substantially as described, as composed of the die-plate C, the punches c, the clearer F, the

centralizers z', the dcpressers m, and their screws o, constructed, arranged, and combined together and with a frame, A, and mechanism for giving vertical motions to the punches, centrali'zers, carrier, and depressers, as

specied.

EDWIN A. HILL,

Witnesses! R.. H. EDDY, F. P.V HALE, Jr. 

